Thickened cyanoacrylate compositions
View Patent ↗The present invention relates to thickened cyanoacrylate compositions, such as those in gel or non-flowable forms. More particularly, the present invention relates to non-flowable cyanoacrylate compositions which can be packaged in a convenient pocket-sized applicator dispenser for use in spreading the cyanoacrylate compositions onto substrates.
1. A cyanoacrylate composition having a shelf life consisting essentially of:
a. at least one α-cyanoacrylate monomer; and
b. a polymer material constructed from poly(ethylene glycol) and poly(butylene terephthalate) sections; and
c. optionally, anionic polymerizable inhibitors, radical polymerization inhibitors, thickners, perfumes, dyes, pigments, accelerators, and combinations thereof.
2. The composition of claim 1 , wherein said polymer material is present in an amount sufficient to thicken said composition.
3. The composition of claim 1 , wherein said polymer material is present in an amount sufficient to render said composition in gel form.
4. The composition of claim 1 , wherein said polymer material is present in an amount sufficient to render said composition non-flowable at room temperature.
5. The composition of claim 4 , wherein said composition is dispensable at room temperature without application of heat.
6. The composition of claim 1 , wherein the α-cyanoacrylate monomer is represented by compounds of the formula:
wherein R 1 represents a straight chain or branched chain substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, a straight chain or branched chain substituted or unsubstituted alkenyl group having 2 to 12 carbon atoms, a straight chain or branched chain substituted or unsubstituted alkynyl group having 2 to 12 carbon atoms, a substituted or unsubstituted cycloalkyl group, an substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group.
7. The composition of claim 6 , wherein R l is selected from the group consisting of a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a pentyl group, a hexyl group, an allyl group, a methallyl group, a crotyl group, a propargyl group, a cyclohexyl group, a benzyl group, a phenyl group, a cresyl group, a 2-choroethyl group, a 3-choropropyl group, a 2-chorobutyl group, a trifluoroethyl group, 2-methoxyethyl group, a 3-methoxybutyl group, a 2-ethoxyethyl group and combinations thereof.
8. The composition of claim 1 , wherein said α-cyanoacrylate monomer is an ethyl cyanoacrylate monomer.
9. The composition of claim 1 , wherein said α-cyanoacrylate monomer is present up to about 98% by weight of the total composition.
10. The composition of claim 1 , wherein the polymer material is present in amounts of about 0.5% to about 30% by weight of the composition.
11. The composition of claim 1 , wherein the polymer material is poly[butyleneterephthalate-co-poly(alkyleneglycol)terephthalate].
12. An article of manufacture comprising:
a. a dispensing container for housing and dispensing a non-flowable adhesive composition, said container comprising a generally elongate hollow body having first and second ends, with one of said ends defining a dispense opening; and
b. a cyanoacrylate composition having a shelf life within said container, said composition comprising:
(i) at least one cyanoacrylate monomer; and
(ii) a polymer material constructed from poly(ethylene glycol) and poly(butylene terephthlate) sections.